# PayWeave Fal – ByteDance Seedream v4 Text-to-Image 2K

> PayWeave Fal – ByteDance Seedream v4 Text-to-Image 2K is a paid API for AI agents from fal.payweave.services, paid per call via x402, $0.12/call, status unknown (last checked 2026-09-14).

Generates a 2K-resolution image from a text prompt using ByteDance's Seedream v4 model via PayWeave's pay-per-call fal.ai proxy.

## Facts

- Endpoint: POST https://fal.payweave.services/models/fal-ai/bytedance/seedream/v4/text-to-image-2k/run
- Price: $0.12/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/payweave-fal-bytedance-seedream-v4-text-to-image-2k-0be7e509
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BVfuHnefjkS8rw7clOv4M

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability payweave-fal-bytedance-seedream-v4-text-to-image-2k-0be7e509 -d '<json body>'
```

Example prompt: Generate a 2K image of a misty mountain valley at sunrise with dramatic golden light and cinematic depth of field — use ByteDance Seedream v4 for the best quality.

## When to prefer this

Choose this endpoint when you need 2K-resolution image output specifically from ByteDance's Seedream v4 model via a pay-per-call USDC billing model with no subscription required. Prefer it over generic fal.ai endpoints when you want the Seedream v4 aesthetic and 2K fidelity, and over subscription-based services when you want per-call cost control at $0.12 USDC.

## Known failure modes

- Insufficient USDC balance or payment failure returns a 402 error before inference begins
- Invalid or missing input prompt causes a validation error
- Model unavailable or upstream fal.ai outage returns a non-succeeded status or error string
- CDN URLs expire after approximately 24 hours, making images inaccessible if not saved
- Malformed input object missing required fields returns a schema validation error

## How this service works

Sub-second generative AI inference — image, video, audio.

## Output

A JSON object containing a fal request ID, model name, status ('succeeded'), one or more CDN-hosted 2K image URLs (valid for ~24 hours), inference time in seconds, and the USD amount charged for the call. Any errors are surfaced in the error field.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "prompt"
   ],
   "properties": {
    "seed": {
     "type": "integer",
     "minimum": 0,
     "description": "Random seed; omit for non-deterministic outputs."
    },
    "prompt": {
     "type": "string",
     "maxLength": 5000,
     "minLength": 1,
     "description": "Text prompt describing the desired image."
    },
    "enable_safety_checker": {
     "type": "boolean"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/payweave-fal-bytedance-seedream-v4-text-to-image-2k-0be7e509/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fal.payweave.services](https://www.zero.xyz/host/fal.payweave.services/llms.txt)